Question : Heart attack occurs due to :
Option 1: Bacterial attack on the heart
Option 2: Stopping of heart beat
Option 3: Lack of blood supply to the heart itself
Option 4: Impairment of heart's working due to unkhown reasons
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Correct Answer: Lack of blood supply to the heart itself
Solution : The correct option is Lack of blood supply to the heart itself.
A heart attack, also known as a myocardial infarction (MI), happens when blood supply to a portion of the heart muscle is suddenly cut off. The development of a blood clot in one of the coronary arteries, which deliver oxygen and nutrients to the heart, is generally the reason of this obstruction. The development of coronary artery disease (CAD), a condition in which the coronary arteries become restricted or obstructed owing to the formation of fatty deposits termed plaque, is the most common underlying cause of a heart attack.
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